Comparison

Humanin vs Liraglutide

Function

While Humanin exerts neuroprotective and cytoprotective effects in models of Alzheimer’s disease, ischemia, and metabolic stress, reducing apoptosis and improving cell survival7136141, Liraglutide is approved for type 2 diabetes and weight management, improving glycemic control and inducing weight loss through GLP-1–mediated insulinotropic, glucagonostatic, and appetite-suppressing actions6880.

Mechanism

While Humanin works as a mitochondrial-derived 24-amino-acid peptide that protects cells against diverse apoptotic insults by interacting with cell-surface cytokine receptor complexes and intracellular targets, thereby activating pro-survival STAT3 and other pathways7136141, Liraglutide is a human GLP-1 analog with a single amino-acid substitution (Lys34→Arg) and a C16 palmitoyl fatty acid attached to Lys26 via a glutamate linker, producing a long-acting GLP-1 receptor agonist6880.

Length and Sequence

Humanin is 24 amino acids long, whereas Liraglutide is longer as it has a length of 31 amino acids. Humanin is made up of a sequence of Methionine, Alanine, Proline, Arginine, Glycine, Phenylalanine, Serine, Cysteine, Leucine, Leucine, Leucine, Leucine, Leucine, Threonine, Serine, Glutamic acid, Isoleucine, Aspartic acid, Leucine, Proline, Valine, Lysine, Arginine, Arginine, Alanine. Liraglutide is made up of a sequence of sequence data not available in the current dataset.

Receptor

Humanin

Binds a trimeric cytokine receptor complex consisting of CNTFR, WSX-1, and gp130, and can also signal via the G-protein–coupled receptor FPRL1/FPR2136141

Liraglutide

GLP-1 receptor (GLP1R) 6880

Organism or Origin

Humanin

Human mitochondrial peptide encoded within the 16S rRNA gene region7685

Liraglutide

Synthetic analog of human GLP-16880

Gene

Humanin

MT-RNR2

Liraglutide

GCG

Sources

7Evidence of natural selection in the mitochondrial-derived peptides ..., https://www.nature.com/articles/s41598-023-41053-0
53Frequently Asked Questions, https://www.peptidejournal.org/peptides/humanin-mitochondrial-peptide-research
76Humanin - Wikipedia, https://en.wikipedia.org/wiki/Humanin
85MT-RNR2 - Wikipedia, https://en.wikipedia.org/wiki/MT-RNR2
141Humanin: a harbinger of mitochondrial-derived peptides? - PMC - NIH, https://pmc.ncbi.nlm.nih.gov/articles/PMC3641182/
68Glucagon-like peptide-1 analogues: An overview - PMC, https://pmc.ncbi.nlm.nih.gov/articles/PMC3712370/
80GLP-1 Localisation and Proglucagon Gene Expression in ..., https://pmc.ncbi.nlm.nih.gov/articles/PMC6200298/